Hydraulic control valve



Dec. 5, 1950 J. J. sLoMER 2,532,343

HYDRAULIC CONTROL VALVE Filed Feb. 5, 1947 2 Sheets-Sheet 1 6,1% j/jwron 05 l014161 @Mib 3% Dec. 5, 1950 J. J. sLoMER 2,532,343

HYDRAULIC CONTROL VALVE Filed Feb. 5, 1947 2 Sheets-Sheet 2 z5 z5 i "22 25 25 22 57%95 Im t /mj SMM Patented Dec. 5, 1950 UNITED S ES PATENT OFFICE HYDRAULIC CONTROL VALVE Joseph` Ji. Siemen Ghicago, Ill.,.'assig1ror' to fGoodman Manufacturing Company, Ghicagm Ill., a corporation of :Illinois Application February 5, 19117,S-erialitlo."726,644`

l 5 Claims.'

This invention relates to improvements in hr1- draulic control valves of the" type adapted 'to'control operation of a number of` hydraulic werku performing devices from a single control handle.

In the operation` of certain types of devices such as self-retrieving trolley poles particularly adapted for use on` locomotives `operable in mines underground, as'shown in my companion application Serial No. 726,645, filed herewith and now abandoned, it is necessary to` operate the valve to supply fluid to retrieve the trolley pole the in stant the pole leaves the vv-irey to prevent the pole from hitting the mineroof and breaking, and to then swing the `pole from side to sideby operation or" the saine valve handle,` without removing the hand from the valve` handle as thevalve handle is also operated to raise ythe pole, so Lthe operator of `the locomotive may'replace the pole without leaving his'cab' and many times without stopping theloeomotive.

The principal objects of my `present invention are to provide a no'vel and 'eiicient form of iluid control valve oi a type` which is particularly adapted to supply inidnnder pressure -to` sel*- retrieving trolley pole., which valve is Aoperable `by a simple downward movement of` the valve handle, to cause the pole to instantaneously drop to the deck ol the locomotive, 'and is also 'operable to supply fluid under pressureA to turn the pole irom side to side `so thepole `may 'be replaced` as the valve is also operated' to `raise 'the pole upwardly to engage its 'current `collector with the trolley wire, by a simple sidewise movement of the valve handle `in the direction it is'fdesiredto turn the pole.

A more sp'eciiic object oi my invention is` to provide a novel and emcient form and` arrangement or valves `in a single'va'lve chamber incl-1rding` a rectilinearly movable piston valve and a valve rotor sli'dably connected with the pistonvalve Vto permit 'operationvof `the piston` valve by rectilinear movement thereof, and to opera-te the rotor by pivotal movement -of the piston valve about its longitudinal axis, and lia-ving fluid Apas sageways so arranged that 'a single 4control "handle will operate either valve'independently of Athe other and will operate both valves together.

These and other objects of my `invention will appear from time to time as the following speci-` Figure 2 is an end view of the 'valve shown 1in Figure 1;

Fig-ure Bis a sectional view taken lsnbstantially along line` 3--3 of` `figure 1;

Figure 4 is'- a sectional vie-w taken substantially along Iline 'E-offigure l and -showngthe piston valve 1in a different operative position than 'in Figure 3';

Figure is a` sectional view taken substantially along line `5--5 of- Fig-ure i and showing tliepiston var'lvein a still dierent operative position than in Figures 3 andi;

Figure-dise sectional view taken substantially along line` `6-= or Fig-ure 2, showing the valve rotor in Aone operating position;

Fig-ure 7 is a sectional view taken substaw tiallyalong the same lines as 'Figure 6i but showing` they valve` i-n a difiere-nt operating position than in Figure 6;

Figure-3 is asectiona-l view 'takenr'substantially along line-oi Figure 2 andshowing the valve rotor Ain -a nentralyposition'; and

Figi-ire` 9` is `a iinidl'diagram illustrating a preferred form` in which the valve of my invention may be used.

Referring now to the drawings, the `embodiment of my invention illnstratedthereinincludes a valveoasing lil having a vaive'chalmb'er i i' `extending longitudinally therealong and having 'a rectilinearlyl movable piston" valve` l2` and "en aligned pivotally movable valve rotor i3, ogoerabie by movement of "said piston valve abont'its longitudinal axis, mounted therein The valve 'casing lil is herein shown as being 4oi a sectional construction including 'abody i5 'hav'- ing 'a part r6 abutting' the bottom thereof. Sain part @Chas a cylindrical inner wall 'open 'at both ends; which forms 'a` continuation 'of the -chan'iber Il 'and"'has'the"valve rotor I3 rotatably mounted therein; An' end" 'closure member Il 'abuts the lowerA end Ao'f said' part i5 and closes one 'end of the'chamber H, and s-secriredt'o 'saidpart it and to saidbody by means of machine screws i9, lil extending` through said end closure member and part` land threaded within` said body.

An end plate- 2i) is secured toithe -end oli the body 'l'opposite from the closure member` I', yas

by'machine 'screws 24, 2li. Said-member is drilled The turret 25 forms a mounting for an operating handle 29 for the valves i2 and I3. As herein shown, an ear 5) projects upwardly from one side of said turret and has a plurality of links 3i, 3l abutting opposite sides thereof and rpivotally connected thereto by a pivotal pin 33.

Said links are pivotally connected to one end of the operating handle 29 by a pivotal pin 34. Said operating handle extends along opposite sides oi a clevis-like member 35 threaded on the upper end of the valve stem 22 and held in xed relation with respect thereto as by a jam nut 36, so said handle may pivotally move the piston valve l2 about its longitudinal axis. A pivotal pin 3l pivotally connects said operating handle to said clevis-like member, to reotilinearly move said piston valve upon movement of said handle about the axis of the pin 3Q.

An index is provided to index the piston valve l2 in its various operative positions, which as herein shown includes two parallel spaced upright guide members 35i, 39 extending upwardly from said turret 25 and slidably engaging bosses projecting laterally from opposite sides of said handle. Said guide members each have a plurality of spaced apart drilled holes di, li aligned with the corresponding holes on each guide member and corresponding to the positions of said control handle when the piston valve l2 is in a central neutral position, an upper pressure position, or in a lower release position. Said bosses are transversely drilled and have a compression spring i3 mounted therein with balls lili, il abutting opposite ends of said spring. Said balls yieldably engaged with the holes di, d! by the spring 53, form a spring pressed detent for indexing said handle. A lug i5 projects laterally from said handle in one direction and is engageable with spaced stops fili, l5 projecting from one guide member 59, to limit vertical movement oi said handle. The plate 2li is radially drilled to receive a spring il and a ball d8 of a ball type index or detent. Said ball is engageable with any one of a plurality of apertures e9, 39 formed in the periphery of the ring 25, to index the various operative positions of the valve rotor E3, as said handle is turned about the longitudinal axis of the piston valve I2, to operate said rotor.

rihe piston valve l2 is provided with two spaced lands 59, 5l slidably engaging the inside of the valve chamber ll and spaced on opposite sides of a pressure passageway 53, when said piston valve is in the extreme upper position shown in Figure 3 and is in position to release pressure from the hydraulic operating devices connected thereto. Said pressure passageway leads into said chamber from the outside of the body I5 of the valve casing, for supplying fluid under pressure to said piston valve and to said valve rotor. Said piston valve also has a stem 54 of an irregular formation extending from the land 5I and herein shown as being of a rectangular form in cross section. Said rectangular stem has slidable engagement with a corresponding hole extending through the valve rotor l 3, for turning said valve rotor upon turning movement or the handle 25 about the longitudinal axis of said piston valve, either while said handle is operating said piston valve or while said piston valve is in a iixed operative position. A spring 55? is mounted in the closure member li and rectangular aperture of the valve rotor i3, for engagement with the end of said valve stem 55, to tend to move said valve towards a neutral position from a pressure posi- 'cil tion, when the hand is removed from the operating handle 29.

A pressure passageway leads from the valve chamber II and is blocked by the land 5I of the piston valve I2 when said piston valve is in the intermediate position shown in Figure 5. Said pressure passageway is provided to supply fluid under pressure to a hydraulic operating device such as a retrieving cylinder and piston 52 of a self-retrieving trolley pole, as shown in Figure 9. Said passageway is opened to supply fluid under pressure to said device when said piston valve and the valve handle 29 are in an extreme downward position (see Figure 4). When said valve handle is in the central position shown in Figure 5, iiuid under pressure will be held in the device to be operated, and when it is in the extreme upper position shown in Figure 2, iiuid pressure will be released from the cylinder 52 through the passageway 55, the central portion of the valve chamber I I beneath the land 5I, and out of the valve nto the return through a return passageway 58 (see Figure 4). A drain passageway Se is also formed in the body I5 and leads from said valve chamber beneath the land 5I, and is connected with the part I6 to take care ci fluid leaking by the rotor I3 and the devices operated thereby. Said drain also serves as a return passageway to release pressure from one side of said rotor, when said rotor is in the proper operative position.

The pressure passageway 53 is connected by a branch passageway extending along the body I5 parallel to the pivotal axis of the piston valve l2, to a pressure passageway 51 formed in the part I t (see Figure 3). Said pressure passageway 51 leads into the chamber formed by the inside of said part I6 and is adapted to register with a passageway 5S formed in the valve rotor I3, when said valve rotor is in the position shown in Figure 6. Said passageway 59 leads into and out of said rotor and is herein shown as being of a substantially V-shaped formation in horizontal section. When the valve is in the position shown in Figure 6, said passageway 59 also registers with a passageway 6I formed in said part I 6 and leading therefrom, for supplying iiuid under pressure through said passageway and to a hydraulic operating device, which may be a rotor 52 of a self-retrieving trolley pole, for turning said rotor and the trolley pole connected therewith (not shown) in one direction (see Figure 9).

A passageway 64 similar to the passageway 59 is formed in the opposite side of the valve rotor I3 from said passageway 59. Said passageway 64 is connected with a return passageway when said valve rotor is positioned as in Figure 6, to relieve pressure from said passageway 54 and to return any fluid which may leak past said rotor. Said return passageway 65 registers with a passageway 56 leading through the body I5 of said valve and opening into the valve chamber II, for returning fluid through the return passageway 5B to a fluid storage tank 'I4 through a return pipe 8| (see Figure 9).

The passageway 64 also connects the pressure passageway 57 with a pressure passageway 61 leading from said valve, to supply fluid under pressure to the opposite side of the rotor 62 from the passageway 5I, and turn the trolley pole in a reverse direction from which it is turned when uid is supplied to said rotor from the passageway 6I, when the valve is in the position shown in Figure 7. When said valve is in this position,

the passageway 59 isconnectedto a passageway 68 formed in `said part I6, which is connected to the return through the drain passageway 68. Said drain passageway besides serving as a drain, also serves to release iiuid from one side of the rotor E2 and to return it to the tank 'I4 through a pipe 82 connected with the return pipe 8i.

Passageways E9 `and 78 are provided in said valve rotor and extend `therealong in the direction of the axis of said rotor on opposite sides of the axis of rotation thereof and intersect a diametral line extending through the pivotal axis of said rotor. When the valve rotor I3 is in the neutral position shown in Figures 3 and 8, the pressure passageway 51 will registerwith the passageway 69, to supply fluid under pressure to the valve rotor I3. From thence fluid will pass downwardly along said passageway B9 and` along a groove 'II formed in the periphery of said rotor, to and through the passageway '18, to exert a balanced pressure on said lvalve rotor when said rotor is in a neutral position. Fluid will also be conducted from the passageway 69 through the passageway 18, or from the passageway through the passageway 58, to release fluid from said passageways 6I or 61 when said valve rotor is in the desired operative position.

In Figure 9 a pump 13 is shown as taking fluid from the storage tank 'I4 and as supplying iiuid under pressure to an accumulator 'I5 through a pipe 1G. A check valve 'I1 is provided in the pipe 16, `to prevent fluid under pressure to said accumulator from flowing Iback to said pump. The pipe 7B is also connected to the pressure passageway53 of the valve for supplying uuid under pressure thereto. A pipe 'I8 connects the pressure passageway 55 with the retrieving cylinder 52, to supply fluid under pressure -thereto to lower the trolley pole as in my companion application Serial No. 726,645. A pipe 'I9 connects the pressure passageway 6I with one side of the rotor E2, for supplying fluid under perssure to turn said rotor and the trolley pole connected therewith in one direction. A pipe 88 connects the passageway 6I with the opposite side of said rotor to turn said rotor and the trolley pole connected therewith in an opposite direction. The return pipe 8l connects the passageway 58 of said valve with the iiuid storage tank T4, and a return pipe 82 connects the drain passageway El] with said return pipe 8| and with said fluid storage tank.

Thus `when the valve rotor I3 is in the position shown in Figure 6, fluid under pressure will be supplied through the pressure passageway 6I to the valve rotor 62, to turn said rotor in one direction, and fluid under pressure will be released from the passageway El through the passageways 69 and lf3 communicating with the passageway 68, and out of the valve block through the drain passageway 68. When said valve rotor is in this position or during movement of said valve rotor into or out of this position, the piston valve I 2 may be operated to raise or lower the trolley pole at will. When said valve rotor is in the position shown in Figure 7, fluid under pressure may be supplied through the pressure passageway B'I and may -be released from the passageway 6I through the passageways IIland 69 communicating with the return passageways 65 and 66 and 58. Said piston valve may also be operated when said valve rotor is in this position or is moving into or out of this position. When the valve rotor is in the position shown in Figure 8, pressure entering said said rotor through the passageway 69 serves to balance said rotor, to permit ready operation thereof `in eitherdirection, and `fluid `is released from bothsides of the rotor 62 through thepassageways 59 and 64, to permit free turning movement of the trolley pole during operation oi the locomotive, as shown and described in my companion application Serial No. 726,645.

The pressure `and relief passageways of the valve are thus so arranged that fluid under pressure is supplied to the valve rotor I3 -when the piston valve I2 is in its various operative posi-- tions, so said valve rotor maybe operated independently of said piston valve or may be operated upon operation of said piston Valve by turning movement of said piston valve about its longitudinal axis, thus providing a simplied form of valve operable to operate a plurality of operating devices from a single control handle either independently or simultaneously of each other.

While I have herein shown and described one form in which my invention may be embodied, it will be understood that the construction thereofsand the arrangement of the various parts may be altered without departing from the spirit and scope thereof. Furthermore, I do not wish. to be construed as limiting my invention to the specific embodiment illustrated, excepting as it may be limited in the appended claims.

I claim as my invention:

l. In a hydraulic control valve, a casing having a valve chamber extending therealong, a piston valve rectilinearly movable along said valve chamber, a valve rotor within said valve chamber and spaced from said piston valve, said piston valve including a valve rodhaving a plurality of pistous thereon andsaid valve rod having an irregular portion having slidable engagement with said valve rotor for turning said rotor upon turning movement of said piston valve when said piston valve is in its various operative positions, and said valve casing having pressure and relief `passageways leading into and out of said valve chamber and arranged to supply or release iiuid from either of said valves when the other is in an operative or a neutral position.

2. In a hydraulic control valve, a casing having a valve chamber extending therealong, a piston valve rectilinearly movable along said valve chamber, a valve rotor within said valve chamber and spaced from said piston valve, said piston valve including a valve rod having a plurality of pistons thereon and said valve `rod having an irregular portion having sliclable engagement with said valve rotor for turning said rotor upon turning movement of said piston valve when said piston valve is in its various operative positions, said casing having pressure and relief passageways leading into and outl of said valve chamber and arranged to supply or release fluid from either of said valves when the other is in an operative or neutral position, and a single control handle having operative connection with said valve rod for rectilinearly moving said piston valve along said valve chamber and for turning said valve rod about its longitudinal axis to operate said valve rotor independently of or simultaneously with said piston valve.

3. In a hydraulic control valve, a casing having a valve chamber therein, a piston valve rectilinearly movable along said valve chamber and including a valve rod having a plurality of pistons thereon, a valve rotor mounted within said Valve chamber, a slidable operative connection between said piston valve and said valve rotor, for turning said rotor upon turning movement of said piston valve when said piston valve is in its several operative positions or is moving from one operative position to another, and an operating handle having operative connection with said valve rod, said handleJ being mounted for pivotal movement about the longitudinal axis of said piston valve for turning said piston valve and said rotor to its several operative positions and being pivotally movable about an axis transverse to the longitudinal axis of said piston valve, for moving said piston valve along said valve chamber into its several operative positions.

li. In a hydraulic control valve, a casing having a valve chamber therein, a piston valve rectilinearly movable along said valve chamber, a valve rotor mounted within said Valve chamber, said piston valve including a valve rod having a plurality of pistons thereon and said valve rod extending from said pistons into slidable engagement with said rotor yfor turning said rotor Within said chamber upon turning movement of said k valve rod about its axis, a pressure passageway leading into said valve casing and chamber for supplying uid under pressure to said pistonvalve, another pressure passageway leading from said pressure passageway to said valve rotor for supl plying iiuid under pressure thereto, a pressure passageway leading from said valve chamber for supplying fluid under pressure to a hydraulic operating device upon rectilinear movement of said piston valve to one position, and another pressure passageway leading from said valve chamber for supplying uid under pressure to another hydraulic operating device upon pivotal movement or" said rotor into one position, said passage- Ways in said casing being so arranged that said piston valve may be operated to supply iluid under pressure to its hydraulic operative device when said valve rotor is in any operative position or is moving into any operative position and said valve rotor may be operated to supply iuid under pressure to its Operating device when said piston valve is in any operative position or is moving into any operative position.

5. In a hydraulic control valve, a casing having a valve chamber therein, a piston Valve rectilinearly movable along said valve chamber, a valve rotor mounted within said valve chamber, said piston valve including a valve rod having a plurality of pistons thereon, a slidable operative connection between said piston valve and said f valve rotor, for turning said rotor upon turning movement of said piston valve and permitting operation of said piston valve upon turning movement of said rotor, and an operating handle having operative connection with said valve rod, said handle being mounted for pivotal movement about the axis of said piston valve for turning said rotor to its several desired positions by turning movement of said piston valve and being pivotally movable about an axis eX- tending transversely to the axis of said piston valve, for moving said piston valve along said Valve chamber into its several operative positions, a pressure passageway leading into said valve casing and chamber, for supplying fluid under vpressure to said ,piston valve, another pressure passageway leading from said pressure passageway to said valve rotor, to supply fluid under pressure thereto, a pressure passageway leading from said valve chamber adjacent said lpiston valve, for supplying duid under pressure to a hydraulic operating device when said @piston valve is moved into one operative position, a pressure passageway leading from said valve chamber adjacent said rotor for supplying uid under pressure to another hydraulic operating device when said rotor is moved into one operative position, return passageways leading from said chamber adjacent said piston valve and said valve rotor and connected to a common iiuid outlet leading from said casing, said pressure and return ,passageways being so arranged that said piston valve may be operated by said handle to supply uid under pressure to or to release fluid pressure from a hydraulic operating device when said valve rotor is in any operative position or is moving into any operative position and said valve rotor may be operated by said handle to supply fluid under pressure to or release Huid pressure from a hydraulic operating device when said piston valve is in any operative position or is moving into any operative position.

JOSEPH J. SLOMER.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 960,558 Koken June 7, 1910 2,362,671 Schwan Nov. 14, 1944 

